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Seven months after losing her left leg in the Boston marathon bombing, Heather Abbott is a strong survivor - not just re-learning to walk, but thriving with four-inch heels, and a renewed sense of confidence and dignity. CNN's Poppy Harlow reports.
Newly released images show bloody photos of Dzhokhar Tsarnaev when he was captured near Boston.
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CNN's Phil Black talks exclusively to the father of a man who knew the Boston bombing suspect and was killed by the FBI.
RELATED STORY: Father: 'Unarmed' son 'not crazy' enough to attack FBI agent who killed him
The father of a Chechen immigrant killed while being questioned by the FBI about his ties to Tamerlan Tsarnaev speaks.
CNN's Tom Foreman breaks down recently released details of the Tsarnaev brothers' bombing of the Boston Marathon. (VIDEO)
RELATED STORY: Federal charges filed against Boston bombing suspect
The FBI released photos and video of two suspects in the Boston Marathon terror attack and are asking the public for help identifying them.
If you have any tips for the FBI, call 1-800-CALL-FBI or go to bostonmarathontips.fbi.gov.
RELATED STORY: FBI releases photos, video of Boston bomb suspects
SEE ALSO: Photos: Boston bombing suspects
Dr. David King had finished running the Boston Marathon when the bombs went off, and he rushed to the hospital to help.
CNN's Chris Lawrence takes a look at how investigators are piecing together clues in the Boston Marathon bombings.
RELATED STORY: Healing in Boston as investigators seek 2 seen near bombing